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A172755 Number of 2*n X n 0..3 arrays with row sums 6 and column sums 12 1
0, 1, 28681, 38578100932, 552523141020099900, 58256290618618126540488181, 34391373190693800172956484206435649, 92324899878614980043437168195067658467141080 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

R. H. Hardin, Table of n, a(n) for n=1..15

CROSSREFS

Sequence in context: A341326 A179251 A122650 * A172827 A145686 A224576

Adjacent sequences:  A172752 A172753 A172754 * A172756 A172757 A172758

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified July 26 16:44 EDT 2021. Contains 346294 sequences. (Running on oeis4.)